164333189 has 2 divisors, whose sum is σ = 164333190. Its totient is φ = 164333188.

The previous prime is 164333173. The next prime is 164333209. The reversal of 164333189 is 981333461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148596100 + 15737089 = 12190^2 + 3967^2 .

It is a cyclic number.

It is not a de Polignac number, because 164333189 - 2⁴ = 164333173 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164333119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82166594 + 82166595.

It is an arithmetic number, because the mean of its divisors is an integer number (82166595).

Almost surely, 2^164333189 is an apocalyptic number.

It is an amenable number.

164333189 is a deficient number, since it is larger than the sum of its proper divisors (1).

164333189 is an equidigital number, since it uses as much as digits as its factorization.

164333189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 164333189 is about 12819.2507191333. The cubic root of 164333189 is about 547.7408032845.

The spelling of 164333189 in words is "one hundred sixty-four million, three hundred thirty-three thousand, one hundred eighty-nine".